svrLSMpy Report for Dynamic Emotion Recognition
Methodology
This report is an analysis of the relationship between lesion status and the behavioral score Dynamic Emotion Recognition; performing lesion-symptom mapping using support vector regression. 108 binary lesion files in MNI space were analyzed, including only voxels with at least 10 overlapping lesions. Lesion volume was controlled using vector normalization. Covariates were regressed out of the behavioural scores. Support Vector Regression (SVR) was applied with parameters gamma = 2, cost = 5, and epsilon = 0.1, employing grid search optimization. Z maps were derived from on null distributions based on 1000 permutations. The analysis was completed within 2 HRS 54 MIN 31 SEC.
Key Parameters
- Number of patients: 108
- Number of permutations: 1000
- Alpha level: 0.05
Lesion Overlap
Unfiltered
Filtered (Minimum 10 patients)
SVR Parameters
| Parameter | Value |
|---|---|
| C | 5 |
| gamma | 2 |
| epsilon | 0.1 |
SVR Beta Map
Permutation Tested
Z Map (Thresholded)
Z Map (Thresholded)
Results
- Mean lesion volume (in voxels): 53371.94
- Number of lesion files: 108
- Z-map value range: (-3.21, 2.82)
Interactive Viewer
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Download the Z-map NIfTI file for further analysis.
Overview
Cluster Details
Coordinates (X, Y, Z): (54.0, -36.0, 9.0)
Cluster Mean: -2.33
Volume (mm³): 8747.00
Desikan-Killiany:
30.06% Right-Cerebral-White-Matter
29.29% Unknown
12.47% ctx-rh-middletemporal
10.68% ctx-rh-superiortemporal
10.53% ctx-rh-bankssts
6.16% ctx-rh-inferiorparietal
Harvard-Oxford:
32.40% Right Middle Temporal Gyrus temporooccipital part
23.91% Right Superior Temporal Gyrus posterior division
21.72% Right Supramarginal Gyrus posterior division
10.71% Right Angular Gyrus
6.32% Right Planum Temporale
Coordinates (X, Y, Z): (57.0, -15.0, -7.0)
Cluster Mean: -2.24
Volume (mm³): 2833.00
Desikan-Killiany:
27.07% ctx-rh-middletemporal
26.09% Unknown
25.45% Right-Cerebral-White-Matter
21.39% ctx-rh-superiortemporal
Harvard-Oxford:
56.02% Right Middle Temporal Gyrus posterior division
21.14% Right Superior Temporal Gyrus anterior division
13.10% Right Superior Temporal Gyrus posterior division
7.20% Right Planum Polare
Coordinates (X, Y, Z): (14.0, -83.0, -4.0)
Cluster Mean: 2.17
Volume (mm³): 2328.00
Desikan-Killiany:
73.32% Right-Cerebral-White-Matter
12.41% ctx-rh-pericalcarine
8.76% ctx-rh-lingual
Harvard-Oxford:
48.97% Right Lingual Gyrus
28.05% Right Intracalcarine Cortex
15.55% Right Occipital Pole
7.39% Right Occipital Fusiform Gyrus
Coordinates (X, Y, Z): (56.0, -26.0, -2.0)
Cluster Mean: -2.18
Volume (mm³): 688.00
Desikan-Killiany:
31.98% Right-Cerebral-White-Matter
24.13% Unknown
22.24% ctx-rh-superiortemporal
17.15% ctx-rh-middletemporal
Harvard-Oxford:
46.22% Right Superior Temporal Gyrus posterior division
25.29% Right Middle Temporal Gyrus posterior division
11.34% Right Middle Temporal Gyrus temporooccipital part
7.41% Right Heschl's Gyrus (includes H1 and H2)
7.27% Right Planum Polare
Coordinates (X, Y, Z): (20.0, -77.0, 19.0)
Cluster Mean: 2.10
Volume (mm³): 204.00
Desikan-Killiany:
93.63% Right-Cerebral-White-Matter
5.88% ctx-rh-lateraloccipital
Harvard-Oxford:
47.06% Right Lateral Occipital Cortex superior division
31.37% Right Cuneal Cortex
19.12% Right Occipital Pole